Corus metal water system with color display of the natural atmosphere of the building. Look as new, safe and durable 1) Cailv not oxidized, it is because the aluminum surface will form an invisible protective film. 2) polyester coating surface Cailv can guarantee it remains beautiful qualities in cold temperature, acid rain, salt corrosion and other harsh weather conditions changing. 3) due to the lower proportion of aluminum alloy, with metal hooks, so gutter force secure. Easy to learn and easy to install gutter Cailv finished due to fewer parts, installation easy to learn, natural and reliable connection between the parts. Green can be recycled, the water color material: K type Cailv products: white, brown, dark brown, the color of ancient pottery, marble gray, ivory semicircle Cailv Products: brown, dark brown, ivory. Corus metal metallic water system to bring a strong architectural expression. Choose different colors, giving the designer with a broad imagination. And the building itself shows the natural color with the atmosphere of the building. Cailv not oxidized, it is because the surface of aluminum will form invisible oxide film. Cailv polyester coating surface, can ensure it remains beautiful qualities in cold temperature, acid rain, salt corrosion and other harsh weather conditions changing. Due to the low proportion of aluminum-magnesium alloy, with metal hooks, so gutter force safe, reliable, easy to learn and easy to install. Can be recycled, in line with the requirements of the national green building. Building Materials Co., Ltd. Hangzhou Ruichen